Muscular System Flashcards
What are the three types of muscle tissue?
Skeletal, Cardiac, Smooth
How do the different muscle tissues differ?
Microscopic anatomy, location and control by the nervous and endocrine system
What is the basic physiological property of muscle tissue?
Contractility: the ability to contract and shorten
4 physiological properties of muscle tissue
Excitability (irritability)
Extensibility
Elasticity
Contractility
Excitability (irritability)
The capacity to receive and respond to a stimulus
Extensibility
The ability to be stretched
Elasticity
The ability to return to original shape after being stretched or contracted
What type of muscle is attached primarily to bones and moves parts of the skeleton?
Skeletal
Skeletal muscle is striated
True
Striations
Produced by a characteristic arrangement of contractile proteins, myosin and actin
Skeletal muscle is an involuntary muscle
False
It can be made to contract and relax by conscious control
How are muscles attached to bones?
Tendons
The eternal sphincter of the bladder and diaphragm cause movement of the skeleton
False
And they do not attach to bone
What is a fascicles?
Bundles of muscle fibers in skeletal muscle
Epimysium
Enclosed fascicles
Fascicles are separated by connective tissue fibers of the…..
Perimysium
Muscles fibers in fascicles are surrounded by the
Endomysium
Satellite cells lie between the __________ and _______
Endomysium and muscle fibers
What is the function of satellite cells?
Repair damaged muscle tissue
Epimsium
Sheath of connective tissue surrounding the muscle
Fascicle
Bundle or cluster of muscle fibers
Perimysium
Sheath of connective tissue surrounding each fascicle
Muscle fiber
Muscle cell